Automatic Open Washing Machine
Design Expo 2015
Critical Needs and Metrics The washing machine door is easy to use
• Force required to open the door. • The number of operation for a first time user.
The washing machine • The number of hands door opens without required to open. use of hands. The washing machine door • Force required to open the door. works manually. The washing machine door • Horizontal distance opens enough for users to from the front face of be comfortable opening it the washer to the door the rest of the way. latch when open. The washing machine door • Maximum distance from which the opens from machine door still opens. fully closed position. The device is easily • The number of additional integrated into the operations to manufacture manufacturing process. machine.
Automatic Open Washing Machine Users are unable to open a front loading washing machine door while their hands are full. By developing a solution to this problem, the market can open to the elderly, physically disabled, and others who have trouble opening a front load washing machine door. Our Washing Machine:
Final Device in Machine:
Final Device Design:
Pin
Spring
Mounting Hardware Button Cover Electronic Button
Impact Plate Power Cord
Mounting hardware (bolts, nuts, and washers) purchased from vendor
Parts are assembled and installed in the FirstBuild facility
Solenoid & Device: Solenoid: Used to supply input force to device. • High-force • AC power • open box frame
17 15 13 11
Wedge & Pin: Used to transfer and change the direction of the force and to apply the force to the door.
User Actuation & Electronics:
9 10
Door opening distance data: Used in validating the metric relating to the opening distance of the door
Button is moveable for people to place Electronic Button in whatever location they Solenoid Leads prefer. Button Cover
Power Cord
Spring: Used to return pin, wedge, and solenoid pin into starting position. Foot Position:
19
Base: Used to house the solenoid, guide the wedge and pin, and hold the spring in place.
Elbow Position:
Force Required to open door (lbs.)
Wedge
Wedge, base, and pin are all injection molded in house
Design Subsystems
Door opening force data: Used in determining the optimal point on the door to locate the device
Goal: 5—7 inches Data: 5 ± 1 inches
Base
Solenoid ordered from vendor
FBDs of wedge and pin: Used in determining geometry of parts and strength of solenoid
2 4 6 8 Distance From Latch to Pin (in.)
Solenoid
FirstBuild Production Plan
Testing Information
0
Parts List
Brock Craig, Alexa Hylas, Kenji Kunugi, Luke Rohrman
Special thanks to:
They will be added to an existing washing machine model. The production line will be low volume.
Assembly Plan: Solenoid secured to base.
Bolts secure base halves together.
Holes are drilled into washer.
Pin inserted into wedge.
Second half of base is set on top.
Assembly secured to washer.
Pin and wedge set into base.
Spring placed into base.
Button placed at users’ position.
Economics Item Solenoid Mounting Hardware Injected Parts Electronic Button with Power Cord Impact Plate Spring Total
Cost $70 $0.63 ~$15 $1 $1 $0.50 $88.13
Critical Needs and Metrics The washing machine door is easy to use
• Force required to open the door. • The number of operation for a first time user.
The washing machine • The number of hands door opens without required to open. use of hands. The washing machine door • Force required to open the door. works manually. The washing machine door • Horizontal distance opens enough for users to from the front face of be comfortable opening it the washer to the door the rest of the way. latch when open. The washing machine door • Maximum distance from which the opens from machine door still opens. fully closed position. The device is easily • The number of additional integrated into the operations to manufacture manufacturing process. machine.
Automatic Open Washing Machine Users are unable to open a front loading washing machine door while their hands are full. By developing a solution to this problem, the market can open to the elderly, physically disabled, and others who have trouble opening a front load washing machine door. Our Washing Machine:
Final Device in Machine:
Final Device Design:
Pin
Spring
Mounting Hardware Button Cover Electronic Button
Impact Plate Power Cord
Mounting hardware (bolts, nuts, and washers) purchased from vendor
Parts are assembled and installed in the FirstBuild facility
Solenoid & Device: Solenoid: Used to supply input force to device. • High-force • AC power • open box frame
17 15 13 11
Wedge & Pin: Used to transfer and change the direction of the force and to apply the force to the door.
User Actuation & Electronics:
9 10
Door opening distance data: Used in validating the metric relating to the opening distance of the door
Button is moveable for people to place Electronic Button in whatever location they Solenoid Leads prefer. Button Cover
Power Cord
Spring: Used to return pin, wedge, and solenoid pin into starting position. Foot Position:
19
Base: Used to house the solenoid, guide the wedge and pin, and hold the spring in place.
Elbow Position:
Force Required to open door (lbs.)
Wedge
Wedge, base, and pin are all injection molded in house
Design Subsystems
Door opening force data: Used in determining the optimal point on the door to locate the device
Goal: 5—7 inches Data: 5 ± 1 inches
Base
Solenoid ordered from vendor
FBDs of wedge and pin: Used in determining geometry of parts and strength of solenoid
2 4 6 8 Distance From Latch to Pin (in.)
Solenoid
FirstBuild Production Plan
Testing Information
0
Parts List
Brock Craig, Alexa Hylas, Kenji Kunugi, Luke Rohrman
Special thanks to:
They will be added to an existing washing machine model. The production line will be low volume.
Assembly Plan: Solenoid secured to base.
Bolts secure base halves together.
Holes are drilled into washer.
Pin inserted into wedge.
Second half of base is set on top.
Assembly secured to washer.
Pin and wedge set into base.
Spring placed into base.
Button placed at users’ position.
Economics Item Solenoid Mounting Hardware Injected Parts Electronic Button with Power Cord Impact Plate Spring Total
Cost $70 $0.63 ~$15 $1 $1 $0.50 $88.13
